Relationship issue

Hi,

I'm running into a weird problem and not sure what's the issue. Currently I have my Main table, and sub table modelled to it called "Director_table" that has columns for "director name" and "region", "Reps_Table" has columns called "Reps name" and "Reps ID". 
I then have some measures that I made called sales current ytd and sales last ytd, and sales  current ytd # change. These where made from the "main table"

When and create a visual table and put the columns I mentioned above into the visual table and the sales current ytd and sales last ytd the table responds fine and is making connection of the sub table with the main table, but once I put the % chg measure it freakes out and can't make the connection. Why is that? But if I only use columns from the main table the % Chg measure does the correct thing.